Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
Dentro del libro
Resultados 1-5 de 18
Página xvi
... there were no flying things -- if there were no insects , bats , or birds as models , artificial flight ( such are the difficulties . attending its realization ) might well be regarded an impossi- 2 ANIMAL LOCOMOTION .
... there were no flying things -- if there were no insects , bats , or birds as models , artificial flight ( such are the difficulties . attending its realization ) might well be regarded an impossi- 2 ANIMAL LOCOMOTION .
Página xvi
... regarded an impossi- bility . As , however , the flying creatures are legion , both as regards number , size , and pattern , and as the bodies of all are not only manifestly heavier than the air , but are composed of hard and soft parts ...
... regarded an impossi- bility . As , however , the flying creatures are legion , both as regards number , size , and pattern , and as the bodies of all are not only manifestly heavier than the air , but are composed of hard and soft parts ...
Página 6
... regarded as the poetry of motion . The fact that a creature as heavy , bulk for bulk , as many solid substances , can by the unaided movements of its wings urge itself through 1 The Ephemera in the larva and pupa state reside in the ...
... regarded as the poetry of motion . The fact that a creature as heavy , bulk for bulk , as many solid substances , can by the unaided movements of its wings urge itself through 1 The Ephemera in the larva and pupa state reside in the ...
Página 10
... regarded as the result of a twisting diagonal movement in the trunk and in the extremities . Without this movement , the momentum acquired by the different portions of the moving mass could not be utilized As the momentum acquired by ...
... regarded as the result of a twisting diagonal movement in the trunk and in the extremities . Without this movement , the momentum acquired by the different portions of the moving mass could not be utilized As the momentum acquired by ...
Página 29
... regarded as secondary in importance to the mus- cular , of which it may be considered a differentiation . Instead of regarding the muscles as adapted to the bones , the bones ought to be regarded as adapted to the muscles . Bones have ...
... regarded as secondary in importance to the mus- cular , of which it may be considered a differentiation . Instead of regarding the muscles as adapted to the bones , the bones ought to be regarded as adapted to the muscles . Bones have ...
Contenido
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Términos y frases comunes
action aërial albatross angle animal arms and legs arrangement artificial wave artificial wing ascends backwards bat and bird biped blades body bones Borelli Compare with fig concave depressed described downward dugong effective stroke elastic ligaments elbow-joint elevating and propelling ellipse elytra extended feet fins fish flexed flexible flexion flight flying foot force gannet glide hind horizontal direction humerus inclined planes increased insect wing joint kite less lever limbs locomotion long axis manner Marey motion move movements muscles muscular muscular system natural wing nervures oblique oscillate pectoral fins pinion porpoise portion position posterior extremities posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse right arm root rotation sail screw sea-bear shoulder-joint side speed spiral swimming tail thick margin travelling surfaces trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking waved track weight wing descends